The Audi TT Roadster (8S, facelift) 45 TFSI quattro S tronic represents a compelling blend of performance and open-air driving enjoyment within the Audi lineup. Produced from 2018 to 2023, this variant occupied a mid-to-high position in the TT Roadster range, offering a significant step up in power and all-weather capability compared to the base models. It’s built on the Volkswagen Group’s PQ25 platform, also known as the A3/Golf platform, and aimed at drivers seeking a sporty, yet refined roadster experience.
Technical Specifications
| Brand | Audi |
| Model | TT |
| Generation | TT Roadster (8S, facelift 2018) |
| Type (Engine) | 45 TFSI (245 Hp) quattro S tronic |
| Start of production | 2018 |
| End of production | 2023 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Roadster |
| Seats | 2 |
| Doors | 2 |
| Combined fuel consumption (WLTP) | 8.1-8.4 l/100 km (29 – 28 US mpg, 34.9 – 33.6 UK mpg, 12.3 – 11.9 km/l) |
| CO2 emissions (WLTP) | 184-191 g/km |
| Fuel consumption (urban) | 9.1-9.2 l/100 km (25.8 – 25.6 US mpg, 31 – 30.7 UK mpg, 11 – 10.9 km/l) |
| Fuel consumption (extra urban) | 6.1-6.2 l/100 km (38.6 – 37.9 US mpg, 46.3 – 45.6 UK mpg, 16.4 – 16.1 km/l) |
| Fuel consumption (combined) | 7.2-7.3 l/100 km (32.7 – 32.2 US mpg, 39.2 – 38.7 UK mpg, 13.9 – 13.7 km/l) |
| CO2 emissions | 164-166 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 5.5 sec |
| Acceleration 0 – 62 mph | 5.5 sec |
| Acceleration 0 – 60 mph | 5.2 sec |
| Maximum speed | 250 km/h (155.34 mph) |
| Emission standard | Euro 6d |
| Weight-to-power ratio | 6.2 kg/Hp, 160.1 Hp/tonne |
| Weight-to-torque ratio | 4.1 kg/Nm, 241.8 Nm/tonne |
| Power | 245 Hp @ 5000-6700 rpm |
| Power per litre | 123.5 Hp/l |
| Torque | 370 Nm @ 1600-4300 rpm (272.9 lb.-ft. @ 1600-4300 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | DKTB, DNPA |
| Engine displacement | 1984 cm3 (121.07 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 5.7 l (6.02 US qt | 5.02 UK qt) |
| Kerb Weight | 1530 kg (3373.07 lbs.) |
| Max. weight | 1810 kg (3990.37 lbs.) |
| Max load | 280 kg (617.29 lbs.) |
| Fuel tank capacity | 45 l (11.89 US gal | 9.9 UK gal) |
| Length | 4191 mm (165 in.) |
| Width | 1832 mm (72.13 in.) |
| Width including mirrors | 1966 mm (77.4 in.) |
| Height | 1355 mm (53.35 in.) |
| Wheelbase | 2505 mm (98.62 in.) |
| Front track | 1572 mm (61.89 in.) |
| Rear track | 1552 mm (61.1 in.) |
| Front overhang | 893 mm (35.16 in.) |
| Rear overhang | 793 mm (31.22 in.) |
| Drag coefficient (Cd) | 0.32 |
| Drive wheel | All wheel drive (4×4) |
| Number of gears and type of gearbox | 7 gears, automatic transmission S tronic |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link suspension |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/50 R17 |
| Wheel rims size | 8J x 17 |
INTRODUCTION
The 2018-2023 Audi TT Roadster 45 TFSI quattro S tronic represents the facelifted version of the 8S generation TT Roadster. This iteration brought styling updates, enhanced technology, and continued the TT’s reputation as a stylish and engaging sports car. The “45 TFSI” designation indicates the engine’s power output within Audi’s naming scheme, while “quattro” signifies the all-wheel-drive system, and “S tronic” denotes the dual-clutch transmission. This particular model aimed to bridge the gap between the entry-level TT Roadsters and the more performance-focused TTS variants.
Powertrain & Engine Architecture
At the heart of the 45 TFSI is the EA888 2.0-liter turbocharged inline-four cylinder engine, specifically coded DKTB or DNPA depending on the exact production year and market. This engine utilizes direct fuel injection (FSI) and an integrated exhaust manifold for improved thermal management and responsiveness. The turbocharger, often a twin-scroll unit, provides strong boost across a wide RPM range. The engine produces 245 horsepower at 5000-6700 rpm and 273 lb-ft of torque from 1600-4300 rpm. The S tronic 7-speed dual-clutch transmission delivers rapid and smooth gear changes, contributing to the car’s sporty character. This transmission allows for both fully automatic operation and manual gear selection via steering wheel-mounted paddles.
Driving Characteristics
The 45 TFSI quattro S tronic offers a balanced driving experience. The all-wheel-drive system provides excellent traction, particularly in adverse weather conditions, making it a usable sports car year-round. Acceleration from 0-60 mph takes approximately 5.2 seconds, and the car feels responsive and eager to rev. Compared to the manual transmission versions, the S tronic offers quicker acceleration due to the faster gear changes. While not as raw or visceral as the higher-output TTS, the 45 TFSI provides ample power for spirited driving on both winding roads and open highways. The gear ratios are tuned for a blend of performance and fuel efficiency, with taller gears for comfortable cruising.
Equipment & Trim Levels
The 45 TFSI quattro S tronic came well-equipped as standard. Key features included leather upholstery, automatic climate control, a multi-function steering wheel, and Audi’s MMI infotainment system with a 7-inch display screen. Optional extras were plentiful, including Audi’s Virtual Cockpit (a fully digital instrument cluster), navigation, a premium sound system (Bang & Olufsen), and various styling packages. Interior trim options ranged from brushed aluminum to carbon fiber accents. The Roadster also featured a fully automatic fabric soft top that could be raised or lowered at speeds up to 31 mph.
Chassis & Braking
The TT Roadster’s chassis is designed for agility and handling. The front suspension utilizes MacPherson struts with coil springs and an anti-roll bar, while the rear features a multi-link setup. This configuration provides a good balance between comfort and control. The 45 TFSI models were equipped with ventilated front disc brakes and solid rear discs. ABS (Anti-lock Braking System) is standard, along with electronic stability control. The steering is a speed-sensitive electric power steering system, providing precise and responsive feel.
Market Reception & Comparison
The 45 TFSI quattro S tronic was generally well-received by automotive critics. It was praised for its stylish design, engaging driving dynamics, and refined interior. Compared to the base 40 TFSI models, the 45 TFSI offered a noticeable performance upgrade, justifying the higher price tag for many buyers. Fuel economy was respectable for a sports car, averaging around 28-32 mpg in mixed driving. Reliability was generally good, although some owners reported minor issues with the infotainment system. Compared to rivals like the BMW Z4 and Porsche 718 Boxster, the TT Roadster offered a more affordable entry point with a distinctive design.
Legacy
The Audi TT Roadster (8S, facelift) 45 TFSI quattro S tronic remains a desirable used car option. The EA888 engine is known for its durability and tunability, and the S tronic transmission is generally reliable if properly maintained. The car’s timeless design and engaging driving experience continue to appeal to enthusiasts. As with any turbocharged vehicle, regular oil changes and maintenance are crucial to ensure long-term reliability. The 45 TFSI strikes a sweet spot in the TT Roadster lineup, offering a compelling blend of performance, style, and practicality.
